Spraying machine



March 12, 1929. E Fo TER 1,705,398

SPRAYING MACHINE Filed June 8, 1927 May roe) E. M Fostera A If fol-megs Patented Mar. 12, 1929.

entree. an

EMORY M. nosrne, or SOUTI-IGATE, CALIFORNIA.

SPRAYING MACHINE. I

Application filed June 8,

strain the leaves from the tobacco before plac--- ing the same in a spraying device, as the narrow nozzle required to impart in effective spray to the liquid easily becomes clogged up, and if a screen is used on the passage-way leading to the nozzle, this screen becomes clogged with impurities and will not permit liquid to pass therethrough.

It is an object of this invention to provide a device wherein this difficulty has been remedied, and suspension of tobacco leaves and water may be employed in the device with little danger of clogging the spraying nozzle,

A. still further object of this invention is to provide a device which is inexpensive to manufacture, is efiective in its operation, and is well adapted to perform its required services.

With these and many other objects in view, which will morereadily appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts, which will hereinafter be more fully described, illustrated, and claimed.

The essential eatures of the invention involvedin the carryin g out of the objects in dicated are susceptible to modification; but a preferred embodiment of the invention is shown in the accompanying drawings, in which: 1

Figure 1 is a side view of the device showing certain parts broken away to more clearly reveal the nature of the invention.

Fig. 2 is a sectional view taken laterally through the device.

Referring to the accompanying drawings in which similar reference characters designate similar parts throughout, the figures described-above adequately illustrate my invention, and the following detailed description is commensurate with the above mentioned drawings in enabling an artisan to construct 1927; Serial No. 197,481.

and assemble the constituent parts of the.

same.

l The device involves in its general organizat on a ar 10, which jar is of any suitable design and may be formed of any suitable material, but is preferably formed of glass. This ar has a cover 11 threadedlv receivable there on, and disposed between the jar and cover. is a packing washer 29, and extending through this cover 11 are a plurality of apertures 12, 13 and 27 A screen 28 extends across the aperture 27 A cap 14 is mounted on the cover 11.- An air discharge duct lbextends into the cap 14, and an outlet tube 16 extends from .a point adjacent the bottom of the, jar through the cover 11 and the cap 14 and tube 15, to the atomizer 26. A small screen assembly l'Z is secured to the lowerend of the tube 16 The tube 16 is bent as at 18'so as to perm t the screen assembly 17 'toassume an in-' clined position. A small sectionof tubing 19 extends through the aperture 12 in the cover 11 and through the cap 14, and receives an elbow 20 'atits upper end.- An inlet tube 21 extends downwardly into the jar to a point just beneath the screen assembly- 17, and is attached to the lower end of the tube section 19. r A check valve 22 is placed in the lower end of the tube 21. The conventional type of plunger pump is'designated at 23 and has its discharging out-let 24, threadedly receivable in the elbow 20. The end of the discharge duct 15 is provided with an atomizer 26 which is threadedly receivable upon this member. The tube 16 extends outwardlythrough the cap 14 and is bent to extend through the member 15. andis spaced from the walls thereof.-

In order to properly space this tube 16, a coil spring is disposed about the same withinthe member 15. This coil spring is designated at 40. g v 1 I In manufacturing the'device, in order to effectthe proper adj ustment of the member 15 I and the tube 16, the tube 16 and coil spring are first inserted in the member 15 before thesame is bent, and when the parts are thus assembled, it is a comparativelyeasy matter to bend the member 15 so as to have a horizontal arm, and in bending, the coil'spring' prevents contact of the tube 16 with the walls o'fthe member 15, and incidentally serves to 'reinforce the same. i

The above parts are thought to adequate ly define my invention in such a manner as to enable anyone skilled in the art to manufacture the same, and I will now proceed with a full detailed description of the operation of the device so as to enable a person the tube 1.5, following thespiral path of the helical coil sprin 10 to the atomizer 26, wherein it will mix with the liquid issuing from the tube 16 and divide it into a fine spray. A jet of air issuing from the check valve 22 will be forcibly thrown against the screen and will tend to clear the same of particles of foreign matter that would otherwise tend to clog the tube 16 and prevent proper operation of thedevice.

I'do not desire to limit myself to the use of this device for disinfectant purposes alone, or for use upon vegetation, as I find that the device is well adapted for spraying paints, glue or the like. hen the device is to be used for spraying'paint, it will be readily apparent that the jet of air issuing from the check valve 22, in addition to clearing the screen 17 and preventing clogging of the tube 16, will keep the paint at all timesin an agitated condition, preventing the heavy pigment in the paint from settling to the bottom. 1

. It will be further apparent that various changes in the details of construction may be resorted to. For example, when in use for sprayingpaint, the pump assembly23 may be completely removed, and in its stead, there may be inserted the conventional type of air compressor line. I

From the foregoing, it is thought that the COIlSlL-ILICt1011,'11S,Ll1Cl many advantages of the herein-described spraying machine will be adequately understood. It will be further understood that certain material alterations in the construction maybe effected without iaving a deleterious effect upon the efficiency of my device. The minor details in the construction will at all times of course, be performed within the scope and spirit of the subjoined claims.

What I claim by this invention and desire to'secure by Letters Patent, is:

1. A spraying device comprising a receptacle, a cover for said receptacle having an aperture therein, a cap on said cover over said aperture, a tube extending through said cover and cap to a point adjacent the bottom of the receptacle, an open-ended tube concentric with said first mentioned tube extending into said cap, a coil spring disposed between said tubes, a nozzle on said last mentioned tube, means for forcing air into said receptacle, said means comprising a tube assemblv extending through said cover and cap to a point adjacent the bottom of the reoeptacle and means at the lower end of said tube assembly to direct the discharge across the end of the first mentioned tube to clear the end of the first mentioned tube of accuniulated solid particles, and a force pump assembly attached to last mentioned tube assembly.

2. A spraying device comprising a receptacle, a cover for said receptacle having an aperture therein, a cap on said cover over said aperture, a tube extending through said cover and cap to a point adjacent the bottom of the receptacle, an open-ended tube concentric with said first mentioned tube extending into said cap, a coil spring disposed between said tubes, a nozzle on said last mentioned tube, means for forcing air into said receptacle, said means comprising a tubeassemb-ly extending through said cover and cap-to a point adjacent the bottom of the receptacle, a force pump assembly attached to last mentioned tube assembly, a screen on said first mentioned tube, said second mentioned tube assemblyrextending to a point adjacent said screen, and a check valve on the end of said tube assembly for the purpose specified;

In testimony whereof I have signed my name to this specification.

EMORY M. OST'ER. 

